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<BODY bgcolor=#F0F0F0 text=#000000 link=#0000ff vlink=#C000C0 alink=#ff0000><A NAME=top></A>
<h5><a href="https://github.com/urbanjost/M_strings">[UP]</a></h5>
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<H1><HR><I>Manual Reference Pages &nbsp;-&nbsp;</I><NOBR>decodebase (3m_strings)</NOBR><HR></H1>
</CENTER>
<A name=0>

     <H3>NAME</H3>

</A>
<BLOCKQUOTE>
<P>
<B>decodebase</B>(3f) - [M_strings:BASE] convert whole number string in base
[2-36] to base 10 number
(LICENSE:PD)
<P>
</BLOCKQUOTE>
<A name=contents></A><H3>CONTENTS</H3></A>
<BLOCKQUOTE>
<A HREF=#1>Synopsis</A><BR>
<A HREF=#2>Description</A><BR>
<A HREF=#3>Options</A><BR>
<A HREF=#4>Example</A><BR>
<A HREF=#5>Author</A><BR>
<A HREF=#6>License</A><BR>
</BLOCKQUOTE>
<A name=7>

     <H3>SYNOPSIS</H3>

</A>
<BLOCKQUOTE>
logical function <B>decodebase</B>(string,basein,out10)
<P>
<PRE>
   character(len=*),intent(in)  :: string
   integer,intent(in)           :: basein
   integer,intent(out)          :: out10
</PRE>
</BLOCKQUOTE>
<A name=2>

     <H3>DESCRIPTION</H3>

</A>
<BLOCKQUOTE>
<P>
Convert a numeric string representing a whole number in base BASEIN
to base 10. The function returns FALSE if BASEIN is not in the range
[2..36] or if string STRING contains invalid characters in base BASEIN
or if result OUT10 is too big
<P>
The letters A,B,&#46;&#46;&#46;,Z represent 10,11,...,36 in the base &gt; 10.
</BLOCKQUOTE>
<A name=3>

     <H3>OPTIONS</H3>

</A>
<BLOCKQUOTE>
<TABLE cellpadding=3>
<TR valign=top><TD width=6% nowrap>
<B>string</B> </TD><TD valign=bottom>
input string. It represents a whole number in
the base specified by BASEIN unless BASEIN is set
to zero. When BASEIN is zero STRING is assumed to
be of the form BASE#VALUE where BASE represents
the function normally provided by BASEIN.
</TD></TR>
<TR valign=top><TD width=6% nowrap>
<B>basein</B> </TD><TD valign=bottom>
base of input string; either 0 or from 2 to 36.
</TD></TR>
<TR valign=top><TD width=6% nowrap>
<B>out10</B> </TD><TD valign=bottom>
output value in base 10
</TD></TR>
<TR></TR></TABLE></BLOCKQUOTE>
<A name=4>

     <H3>EXAMPLE</H3>

</A>
<BLOCKQUOTE>
Sample program:
<P>
<PRE>
   program demo_decodebase
   use M_strings, only : codebase, decodebase
   implicit none
   integer           :: ba,bd
   character(len=40) :: x,y
   integer           :: r
<P>
   print *,&#146; BASE CONVERSION&#146;
   write(*,&#146;("Start   Base (2 to 36): ")&#146;,advance=&#146;no&#146;); read *, bd
   write(*,&#146;("Arrival Base (2 to 36): ")&#146;,advance=&#146;no&#146;); read *, ba
   INFINITE: do
      print *,&#146;&#146;
      write(*,&#146;("Enter number in start base: ")&#146;,advance=&#146;no&#146;); read *, x
      if(x.eq.&#146;0&#146;) exit INFINITE
      if(decodebase(x,bd,r)) then
         if(codebase(r,ba,y)) then
           write(*,&#146;("In base ",I2,": ",A20)&#146;)  ba, y
         else
           print *,&#146;Error in coding number.&#146;
         endif
      else
         print *,&#146;Error in decoding number.&#146;
      endif
   enddo INFINITE
<P>
   end program demo_decodebase
<P>
</PRE>
</BLOCKQUOTE>
<A name=5>

     <H3>AUTHOR</H3>

</A>
<BLOCKQUOTE>
John S. Urban
<P>
<PRE>
      Ref.: "Math matiques en Turbo-Pascal by
             M. Ducamp and A. Reverchon (2),
             Eyrolles, Paris, 1988".
<P>
</PRE>
based on a F90 Version By J-P Moreau (www.jpmoreau.fr)
</BLOCKQUOTE>
<A name=6>

     <H3>LICENSE</H3>

</A>
<BLOCKQUOTE>
Public Domain
</BLOCKQUOTE>
<P><HR>
<TABLE width=100%><TR> <TD width=33%><I>Nemo Release 3.1</I></TD> <TD width=33% align=center>decodebase (3m_strings)</TD> <TD align=right width=33%><I>April 30, 2022</I></TD> </TR></TABLE><FONT SIZE=-1>Generated by <A HREF="http://www.squarebox.co.uk/download/manServer.shtml">manServer 1.08</A> from 3994f009-67aa-48bb-9038-980f2921e445 using man macros.</FONT>
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